Vitrek Xitron 6000-2, Руководство пользователя

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70 6000-2 & -3 User Guide, Rev E
Device Clear —
The IEEE488 defined
DEVICE CLEAR
functions (both selective and global) force
the instrument to perform a power-on reset function.
Interface Clear—
The IEEE488 standard defines this command, which causes the interface portion of
the instrument to be reset to the power on conditions, aborting any bus activity in
progress.
Should a handshake sequence improperly complete during a transfer of data to, or
from, the IEEE488 interface, the instrument will automatically perform a
POWER-
ON RESET sequence. This facility prevents the interface from becoming “locked
out” if the interface cable is removed or becomes faulty during a data transfer.
Note:
Following a
POWER-ON RESET,
or a
DEVICE CLEAR
via the IEEE488
interface, all analog outputs are returned to their respective front panel configured
parameters, inputs, zero offsets and spans.
Application for the Lower Case Portions of Commands
The upper-case portion is the command operator, the lower case portions represent
the optional parameter(s) for the command.
•
parameter —
Specifies placement (position) for the required parameter’s descriptor. Refer to
the end of this section for a complete list of the available parameter descriptors
and formats.
•
n —
An integer number having the specified range. In cases where more than one
digit is possible, you may optionally place the leading zero characters. This data
may not have a preceding polarity sign character.
•
numeric —
A floating point number having the specified units. This data may have an
optional preceding polarity character. The decimal point is optional, and may be
in any desired position. “e” format numbers are also accepted.
•
string —
One of the specified possible character strings for the specific command, can be
up to 12 characters in length.